FTP + HTTPS Access

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IGS Products can be accessed through CDDIS and other Global Data Centers.
To obtain access to the products please see below.

Orbit and Station and satellite clock products are found in the standard product directories, the orbits in files that end in *.sp3.Z and the clocks in files that end in *.clk.Z ;.

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GLONASS Satellite Ephemerides

GLONASS Satellite Ephemerides can be at the following locations:

Geocentric Coordinates of IGS Tracking Stations

IGS Combined and Analysis Center Position products (positions and velocities) can be found in the standard product directories with filenames that end in *.snx.Z.  The station positions and velocity files are stored in Solution Independent Exchange (SINEX) format.

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Earth Rotation

All Earth Rotation products (Ultra-Rapid, Rapid, Final) can be found in the standard product directory having filenames that end in *.erp.Z ;

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Atmospheric parameters

Final IGS station tropospheric zenith path delay with N, E gradients;

Final Analysis Center station tropospheric zenith path delay with N, E gradients can be found in the product directories having filenames that end in *.tro.Z ;

Rapid and Final ionospheric TEC grid;

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